001/* 002 * SonarQube 003 * Copyright (C) 2009-2017 SonarSource SA 004 * mailto:info AT sonarsource DOT com 005 * 006 * This program is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 3 of the License, or (at your option) any later version. 010 * 011 * This program is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public License 017 * along with this program; if not, write to the Free Software Foundation, 018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 019 */ 020package org.sonar.api.utils; 021 022import java.io.File; 023import java.io.IOException; 024import java.nio.file.Files; 025import java.nio.file.Path; 026 027/** 028 * @deprecated since 4.0 use {@link TempFolder} 029 */ 030@Deprecated 031public final class TempFileUtils { 032 033 private TempFileUtils() { 034 // only static methods 035 } 036 037 /** 038 * Create a temporary directory. This directory is NOT deleted when the JVM stops, because using File#deleteOnExit() 039 * is evil (google "deleteonExit evil"). Copied from http://stackoverflow.com/questions/617414/create-a-temporary-directory-in-java : 040 * <ol> 041 * <li>deleteOnExit() only deletes for normal JVM shutdowns, not crashes or killing the JVM process</li> 042 * <li>deleteOnExit() only deletes on JVM shutdown - not good for long running server processes because 3 :</li> 043 * <li>The most evil of all - deleteOnExit() consumes memory for each temp file entry. If your process is running for months, 044 * or creates a lot of temp files in a short time, you consume memory and never release it until the JVM 045 * shuts down.</li> 046 * </ol> 047 */ 048 public static File createTempDirectory() throws IOException { 049 return createTempDirectory("temp"); 050 } 051 052 public static File createTempDirectory(String prefix) throws IOException { 053 Path dir = Files.createTempDirectory(prefix); 054 return dir.toFile(); 055 } 056}